Registration Dossier
Registration Dossier
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EC number: 200-291-6 | CAS number: 56-84-8
Melting point / freezing point
Administrative data
Link to relevant study record(s)
Description of key information
In a differential scanning calorimetry assay a melting temperature of 230 °C, with an onset of ca. 204 °C was determined. Decomposition started at ca. 235 °C, with a peak of 249 °C.
According to 2 older handbooks, melting occurs at 270 to 277.5 °C, decomposition starts at >300 °C.
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 230 °C
Additional information
The discrepancy between the handbook data and the more recent determination by DSC might possibly be explained by a remark in Beilsteins Handbuch der Organischen Chemie, 1963, where it is stated: "Formation of high molecular condensation products on heating to 200 °C".
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